Change Language on Exchange 2010 Mailbox

So first thing we did was check the language on the users mailbox by running the following CMDLET

Get-Mailbox –Identity “username” | fl languages

This Returned a value of “ Languages : {es-SV}” . So we had found that the problem was that the mailbox had been set to the wrong language, so we run the following command to set the language to English (US)

Set-Mailbox –Identity “username” –Languages “en-US”

To confirm the language of mailbox had change we ran the first command again and it returned the “en-US” value